soneya-majumdar.bsky.social
@soneya-majumdar.bsky.social
Reposted
"base composition in the first six codons modulates local mRNA folding energy and single-strandedness to control the balance between productive translation initiation versus degradation of mRNAs" 🦠 #RNABiology #RNAsky Congrats to Greg Boel team #EGM academic.oup.com/nar/article/...
Base composition at the start of the coding sequence controls the balance between translation initiation and mRNA degradation in E. coli
Abstract. Protein synthesis efficiency is highly dependent on the messenger RNA (mRNA) coding sequence. Furthermore, there is extensive evidence of a corre
academic.oup.com
December 17, 2025 at 8:46 AM
Reposted
Vault shell turducken. 👀
December 16, 2025 at 10:07 AM
Reposted
IsoNet2 determines cellular structures at submolecular resolution without averaging https://www.biorxiv.org/content/10.64898/2025.12.09.693325v1
December 11, 2025 at 11:32 AM
Reposted
Confused by all the histones that are cropping up in organisms that are decidedly NOT eukaryotes? check out our review - fantastic work by team NucEvo in the #Lugerlab
The Expanding Histone Universe: Histone-Based DNA Organization in Noneukaryotic Organisms - www.annualreviews.org/content/jour...
December 9, 2025 at 3:14 PM
Reposted
What started out as a structure-function project for an undergraduate researcher morphed into something bigger w/ @popea.bsky.social leading the way. Check out how RhlR fine tunes its response to its autoinducer to avoid producing too much pyocyanin.

www.biorxiv.org/content/10.6...
RhlR quorum-sensing receptor ligand sensitivity regulates the differential expression of phenazine genes in Pseudomonas aeruginosa
Bacteria control individualistic and group behaviors using a form of cell-cell communication called quorum sensing. Quorum sensing relies on the production of chemical signals called autoinducers and ...
www.biorxiv.org
December 9, 2025 at 2:22 PM
Reposted
Online Now: Hypoxia-induced ribosomal RNA modifications in the peptidyl-transferase center contribute to anaerobic growth of bacteria Online now:
Hypoxia-induced ribosomal RNA modifications in the peptidyl-transferase center contribute to anaerobic growth of bacteria
Ishiguro et al. identify stereoselective ribose-backbone methylations in the peptidyl-transferase center of E. coli ribosomes, installed by the cobalamin-dependent enzyme RlmX. These methylations, together with ho5C2501, are specifically induced under hypoxia. The hypoxia-induced modifications activate ribosomes, enhancing translational capacity and thereby promoting bacterial fitness in anaerobic conditions.
dlvr.it
December 10, 2025 at 8:14 PM
Reposted
🔽 !!??? #RNASky 🧪
December 10, 2025 at 12:06 AM
Reposted
Ever wondered how several individual RBPs cooperate to repress translation?

Lead by @marcopayr.bsky.social and in great collaboration with @hennig-lab.bsky.social, we simultaneously tracked the binding of several proteins to single mRNA molecules in real-time!

www.biorxiv.org/content/10.1...
April 12, 2025 at 11:29 AM
Reposted
Two M. tuberculosis RelE toxins don’t cut mRNA, they slice 16S rRNA itself, shutting down translation in a totally unexpected way, new study reveals.
A big leap in understanding TB’s survival tricks and new angles for therapies.

📖 shorturl.at/Z8MVX
✍️ @genevauxpierre.bsky.social & coll.
#MicroSky
November 18, 2025 at 8:56 AM
Reposted
Using "in extracto cryo-EM", we visualize ribosomes in mammalian lysates, including RRL. "Hibernating" ribosomes carry an extended set of proteins that protect functional centers. These include elongation factor eEF2, LARP1 implicated in mTOR signaling, eIF5A etc. www.biorxiv.org/content/10.1...
November 30, 2025 at 9:11 PM
Reposted
The epitranscriptome formed by the growing number of modifications occurring within mRNA transcripts.

We have been mapping mRNA modifications for over a decade.

=> Characterizing their functions -- especially on translation -- is a research frontier.
November 30, 2025 at 2:36 PM
Reposted
In extracto cryo-EM reveals eEF2 as a major hibernation factor on 60S and 80S particles www.biorxiv.org/content/10.1101/2025.11.25.690450v1 #cryoem
November 26, 2025 at 8:10 AM
Reposted
Structure of the Hibernating Francisella tularensis Ribosome and Mechanistic Insights into Its Inhibition by Antibiotics https://www.biorxiv.org/content/10.1101/2025.11.25.690415v1
November 26, 2025 at 2:16 AM
Reposted
Bacteria have to adapt rapidly to changes in environment. Can they ‘remember’ those conditions? Another one for my “to read” pile! cc @microberamon.bsky.social @victoriachu.bsky.social @nickyuen.bsky.social @fratorelli.bsky.social #UTISky #MicroSky
November 18, 2025 at 9:13 AM
Reposted
Issue 22:
Maternal antibody interference with rotavirus vaccination
Conserved complex controls developmental & circadian timing
Review: Type IV secretion systems
Method: T-cell smFISH images transcription, RNA localization & fate
Cover: @jomaalab.bsky.social et al
www.embopress.org/toc/14602075...
November 17, 2025 at 9:48 AM
Reposted
Happy to share our latest NAR paper on Rel toxins targeting M. tuberculosis anti-SD region, with Tim Blower’s team (@durham.ac.uk @nebiolabs.bsky.social) and Laurent Falquet
Thanks to FRM @frm-officiel.bsky.social and CNRS @cnrsbiologie.bsky.social
academic.oup.com/nar/article-...
November 17, 2025 at 10:31 AM
Reposted
Structural insights into the chaperone role of uncharged tRNA(Arg/Gln) in viral RNAP assembly #RNASky 🧪 www.nature.com/articles/s41...
tRNA as an assembly chaperone for a macromolecular transcription-processing complex - Nature Structural & Molecular Biology
Here, the authors solve a series of cryo-electron microscopy structures that show how transfer RNAs (tRNAs) can guide the assembly of the multisubunit poxvirus RNA polymerase, uncovering a role of tRN...
www.nature.com
November 15, 2025 at 9:44 PM